DE3113859C2 - - Google Patents
Info
- Publication number
- DE3113859C2 DE3113859C2 DE3113859A DE3113859A DE3113859C2 DE 3113859 C2 DE3113859 C2 DE 3113859C2 DE 3113859 A DE3113859 A DE 3113859A DE 3113859 A DE3113859 A DE 3113859A DE 3113859 C2 DE3113859 C2 DE 3113859C2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic
- magnetic recording
- recording medium
- ratio
- magnetic layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011148 porous material Substances 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000006247 magnetic powder Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000000020 Nitrocellulose Substances 0.000 claims description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 2
- 229920001220 nitrocellulos Polymers 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 18
- 238000003490 calendering Methods 0.000 description 16
- 238000005259 measurement Methods 0.000 description 15
- 239000011248 coating agent Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- 239000007795 chemical reaction product Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 8
- -1 polyethylene terephthalate Polymers 0.000 description 7
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229940090961 chromium dioxide Drugs 0.000 description 4
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 4
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 229920001228 polyisocyanate Polymers 0.000 description 4
- 239000005056 polyisocyanate Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 4
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- JLPULHDHAOZNQI-ZTIMHPMXSA-N 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC JLPULHDHAOZNQI-ZTIMHPMXSA-N 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 229940083466 soybean lecithin Drugs 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249986—Void-containing component contains also a solid fiber or solid particle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31565—Next to polyester [polyethylene terephthalate, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/3188—Next to cellulosic
- Y10T428/31884—Regenerated or modified cellulose
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31935—Ester, halide or nitrile of addition polymer
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4540980A JPS56143523A (en) | 1980-04-07 | 1980-04-07 | Magnetic recording medium |
| JP4540880A JPS56143522A (en) | 1980-04-07 | 1980-04-07 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3113859A1 DE3113859A1 (de) | 1982-01-28 |
| DE3113859C2 true DE3113859C2 (ko) | 1989-03-23 |
Family
ID=26385386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813113859 Granted DE3113859A1 (de) | 1980-04-07 | 1981-04-06 | Magnetisches aufzeichnungsmaterial |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4450199A (ko) |
| DE (1) | DE3113859A1 (ko) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654536B2 (ja) * | 1983-02-04 | 1994-07-20 | 富士写真フイルム株式会社 | 磁気記録媒体 |
| JPS59203224A (ja) * | 1983-05-02 | 1984-11-17 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JPS59229739A (ja) * | 1983-06-10 | 1984-12-24 | Tdk Corp | 磁気記録媒体 |
| US4546035A (en) * | 1983-06-27 | 1985-10-08 | International Business Machines Corporation | Polymeric additives for magnetic coating materials |
| DE3332564A1 (de) * | 1983-09-09 | 1985-03-28 | Basf Ag, 6700 Ludwigshafen | Magnetische aufzeichnungstraeger |
| DE3332504A1 (de) * | 1983-09-09 | 1985-03-28 | Basf Ag, 6700 Ludwigshafen | Magnetische aufzeichnungstraeger |
| JPS6070522A (ja) * | 1983-09-28 | 1985-04-22 | Kanto Denka Kogyo Kk | 磁気記録媒体 |
| JPS6070521A (ja) * | 1983-09-28 | 1985-04-22 | Kanto Denka Kogyo Kk | 磁気記録媒体 |
| US4567083A (en) * | 1983-10-17 | 1986-01-28 | Tdk Corporation | Magnetic recording medium |
| NL8402136A (nl) * | 1984-07-05 | 1986-02-03 | Pd Magnetics Bv | Magnetisch registratie element en methode voor de vervaardiging ervan. |
| US4626463A (en) * | 1984-09-26 | 1986-12-02 | Minnesota Mining And Manufacturing Company | Diskette having wear-resistant magnetizable layer |
| JPH0719352B2 (ja) * | 1985-04-04 | 1995-03-06 | 富士写真フイルム株式会社 | 円盤状磁気記録媒体 |
| GB2173811B (en) * | 1985-04-05 | 1988-08-24 | Tdk Corp | Magnetic recording medium |
| US4693908A (en) * | 1985-08-19 | 1987-09-15 | International Business Machines Corporation | Magnetic recording disk with improved lubricant retention |
| JPH0760508B2 (ja) * | 1985-12-10 | 1995-06-28 | ティーディーケイ株式会社 | 磁気記録ディスクおよびその製造方法 |
| JPS62219324A (ja) * | 1986-03-20 | 1987-09-26 | Hitachi Maxell Ltd | 磁気記録媒体 |
| JP2554651B2 (ja) * | 1987-05-13 | 1996-11-13 | 株式会社東芝 | 磁気記録媒体 |
| US5240768A (en) * | 1987-06-12 | 1993-08-31 | Minnesota Mining And Manufacturing Company | Articles containing metal fibers |
| JPS648508A (en) * | 1987-06-30 | 1989-01-12 | Toshiba Corp | Magnetic recording medium |
| US5126215A (en) * | 1988-04-13 | 1992-06-30 | Fuji Photo Film Co., Ltd. | Magnetic recording medium having a surface with pores of specified average inlet diameter and wide pore size distribution controlled by calender treatment |
| US5705253A (en) * | 1994-06-13 | 1998-01-06 | Minnesota Mining And Manufacturing Company | Video recording tapes suitable for high speed contact duplication |
| JPH08102034A (ja) * | 1994-09-19 | 1996-04-16 | Minnesota Mining & Mfg Co <3M> | 磁気記録媒体 |
| JP3008009B2 (ja) * | 1994-12-12 | 2000-02-14 | ヤマウチ株式会社 | 磁気記録媒体のカレンダー用樹脂ロールおよびその製造法 |
| US7124466B2 (en) * | 2002-02-05 | 2006-10-24 | Seagate Technology Llc | Particle capture system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910244B1 (ko) * | 1970-12-15 | 1974-03-09 | ||
| FR2280950A1 (fr) * | 1974-07-30 | 1976-02-27 | Kodak Pathe | Nouvelle bande magnetique a incurvation transversale amelioree |
| FR2353110A1 (fr) * | 1976-03-12 | 1977-12-23 | Kodak Pathe | Nouveau produit d'enregistrement magnetique et procede pour sa preparation |
| JPS5421806A (en) * | 1977-07-20 | 1979-02-19 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| JPS5525406A (en) * | 1978-08-11 | 1980-02-23 | Hitachi Ltd | Preparation of coating composition for magnetic recording disc |
| JPS5677927A (en) * | 1979-11-28 | 1981-06-26 | Fuji Photo Film Co Ltd | Magnetic recording medium |
-
1981
- 1981-04-06 DE DE19813113859 patent/DE3113859A1/de active Granted
- 1981-04-07 US US06/251,826 patent/US4450199A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4450199A (en) | 1984-05-22 |
| DE3113859A1 (de) | 1982-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8128 | New person/name/address of the agent |
Representative=s name: KOHLER, M., DIPL.-CHEM. DR.RER.NAT., 8000 MUENCHEN |
|
| 8110 | Request for examination paragraph 44 | ||
| 8128 | New person/name/address of the agent |
Representative=s name: SOLF, A., DR.-ING., 8000 MUENCHEN ZAPF, C., DIPL.- |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |